over 970 kph (600 mph) in the open ocean

来源: 于 2011-03-11 11:28:58 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

The Speed of a Tsunami:
A tsunami can travel at well over 970 kph (600 mph) in the open ocean - as fast as a jet flies. It can take only a few hours for a tsunami to travel across an entire ocean. A regular wave (generated by the wind) travels at up to about 90 km/hr.

http://www.enchantedlearning.com/subjects/tsunami/